Classifications

• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16H—GEARING
  • F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
  • F16H59/02—Selector apparatus
  • F16H59/0204—Selector apparatus for automatic transmissions with means for range selection and manual shifting, e.g. range selector with tiptronic
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16H—GEARING
  • F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
  • F16H59/02—Selector apparatus
  • F16H2059/026—Details or special features of the selector casing or lever support
  • F16H2059/0265—Selector lever support with pivot axis offset, e.g. support by four bar linkage to create pivoting centre outside the mechanism

Definitions

• Remote control device of an automatic gearbox allowing manual control
• the present invention relates to a control device of an automatic transmission of a motor vehicle.
• the invention relates more particularly to a remote control device of an automatic gearbox allowing manual control, with a gearshift lever to dashboard.
• the layout to the dashboard can cause problems of style or design of the dashboard, due in particular to the the size of the mechanism used to transmit the movement of the driver's hand to the gearbox. There is therefore a need to deport this mechanism to reconcile control ergonomics, harmonious style of the driving position, and maintaining the speed control functionality for automatic transmissions.
• FR 2 849 809 and FR 2 856 960 of the same applicant describe a device of the type indicated above with a reduced vertical space requirement and having an ergonomic movement of the lever so that the gripping part of the shifter is within range. from the driver's hand, regardless of the gear engaged.
• This type of device to the dashboard allows the driver, whose arm is then substantially horizontal, to exert only a horizontal force and not a vertical force upwards or downwards, by "breaking" his wrist .
• this type of device does not offer the possibility to the driver to intervene on the speed control manually and quickly, for example by a command type impulse.
• This type of device does not further provide the ability to quickly switch from one control mode to another or the actuation of a lock or protection to exit the parking position only after pressing the brake.
• the present invention therefore aims to overcome one or more of the disadvantages of the prior art by providing an external gearbox control device offering the driver the choice between two types of gear control.
• an additional object of the invention is to provide a compact arrangement to switch from an automatic control mode to a manual control mode and vice versa.
• the invention proposes an external control device for a motor vehicle gearbox comprising a shift lever pivoting about a first axis, substantially transverse to the vehicle, on a support which is pivotally mounted, relative to a frame carried by the vehicle, about a second axis orthogonal to the first axis, the device being of the type provided with coplanar rods for connecting the lever to the support, the lever being operable longitudinally and transversely, characterized in that it comprises a means for returning the longitudinal movement of the lever to actuate a transmission member, the return means being integral with the frame and rotatable about an axis parallel to the first axis and in that a first of said rods is movable in rotation about said second axis between:
• the device according to the invention ensures a disengagement of the cable to switch to a non-automatic control mode, such as a manual impulse control.
• the device is compact, the lever, the two rear and front links and the support forming a deformable quadrilateral in a reduced vertical footprint.
• the first link comprises a first end attached to a front end portion of the lever and an opposite second end through which the first linkage drives the return means, said attachment end having a protruding U-shaped portion. to receive the second end of the first link in the engagement position.
• the branches of the U-shaped portion have a spacing determined to allow the engagement of said second end with the internal contact zones of the U-shaped portion of the hooking end, the thickness of the portion U and the thickness of the second end being substantially equal.
• the return means comprises a main portion secured to a ball joint for securing the transmission member and arranged opposite the hooking end, the main portion and the end portion. are connected by a curved portion and formed in one piece, the curved portion being arranged to maintain a determined spacing which is sufficient to allow in the disengaging position a free rotational movement of the second end of the first link between the main portion and the U-shaped portion of the return means, said spacing being at least twice the thickness of the U-shaped portion.
• the transmission member is a cable designed to transmit, via the actuatable return means when the first rod is in said engagement position, a longitudinal position information lever corresponding to one of the following positions: parking , reverse gear, neutral and automatic steering.
• the support pivotally mounted relative to the frame is provided with a cam system driven via the links by a transverse movement of the lever, the cam system including a projecting tab movable vertically between a lower position and a position upper, the frame having an arm provided with a system for marking the position of the tab.
• the invention advantageously provides a sensitive delimitation for the driver between two different interchangeable positions by transverse action on the lever, these positions being able to correspond to the manual position M and to the automatic driving position D ("drive").
• the system for marking the position of the tab comprises at the end of the arm a billing member opposite the tab arranged to bear respectively on one or the other of two adjacent distinct concave zones formed at the end of said tab.
• the return means is integral with rotational locking means actuated by mechanical and / or electromechanical type control members.
• the device of the invention has a lock for certain changes of position of the operating lever.
• said rotational locking means comprise a tab with at least four notches, integral with the main portion of the deflection means, the lever being provided with a trigger for pulling an actuating cable of an element of locking one end is movable between a locking position between two notches of the tab and a release position when the cable is pulled by the trigger.
• said rotational locking means comprise a lug secured to the main portion of the return means, provided with at least one groove or slot for receiving a locking pin actuated by an electromagnet system of the type receiving representative electrical braking commands.
• the device may include a "shiftlock" type of protection that prohibits exiting a given position, for example the parking position called parking, without pressing the brake.
• said tab comprises between two respective notches successive locking positions corresponding to each of the following successive positions: parking, reverse, neutral and automatic driving; the tab comprising a slot provided to receive the blocking finger and delimit the stroke of the tab by at least one stop surface for the locking pin in the position of passage from the parking position to the reverse position, a hole or additional light being provided to receive the locking finger in the locking position corresponding to the parking position.
• the notches of the tab are chamfered to facilitate the rotation of the tab in the opposite direction to the engagement of the locking position corresponding to the parking position.
• FIG. 1 is a perspective view of three quarters before illustrating a control device according to the invention
• - Figure 2 shows a grid of an automatic transmission according to one embodiment of the invention
• - Figure 3 is a partial view of the device of Figure 1 illustrating the disengagement function of a transmission cable permitted according to the invention
• FIG. 4 is a partial front perspective view of the device of FIG. 1;
• FIG. 5 is a rear view of the device of Figure 1 illustrating blocking protections of certain positional passages.
• the device comprises a shift lever (12) which is pivotally mounted about a first axis (I), substantially transverse to a longitudinal direction (V) of the vehicle.
• first axis "I” corresponds to an instantaneous theoretical axis of rotation around which the pivoting movement of the lever (12) around the transverse direction.
• the lever (12) is also mounted on a support (14) which is pivotally mounted about a second axis (A) relative to a frame (16) carried by the vehicle.
• the second axis (A) is orthogonal to the first axis (I).
• the support (14) is for example constituted by a bar whose cylindrical ends are received in two bearings (20, Figure 3) conforming smooth frame (16).
• the lever (12) and the support (14) are connected by two links (26, 28) movable coplanar.
• the rear link (26) and the front link (28) are each articulated on the lever (12) and on the support (14) by upper and lower pivots.
• the upper pivot (32) and the lower pivot (36) of the front link (28) have respective axes (C, D) parallel to each other and to the axis (B) of the upper pivot, respectively the axis the lower pivot, the front link. All these axes (B, C, D) are orthogonal to the second axis (A), as illustrated in FIG.
• the lever (12), the support (14) and the links (26, 28) form a deformable quadrilateral in which the directions of the respective axes (X, Y) passing through the opposite end pivots (32, 36, Figure 3) of each link (26, 28) are concurrent to determine the first axis "I" pivoting of the lever (12) on the support (14).
• the support (14) of the device extends substantially horizontally and longitudinally about its second axis (A) of pivoting, while two links (26, 28) are arranged on the same side of the second axis (A) relative to the support ( 14), so that, as shown in Figure 1, the lever (12), the two rear links (26) and front (28), and the support (14) form a deformable quadrilateral in a vertical space reduced in a longitudinal plane passing through the second axis (A) of articulation of the lever (12). As illustrated in FIGS. 1 and 3, the two links (26, 28) extend further in order to reduce the longitudinal space between the support (14) and the free end (120) located at the front of the lever (12).
• Such a configuration makes it possible to integrate the device of the invention into a dashboard (not shown) in a reduced vertical and longitudinal space, and thus to release in said dashboard important spaces for the integration of accessories of comfort and / or driving the vehicle.
• the rear operating part of the lever (12), terminated by the operating knob (11), comprises at least one bent part (30) with respect to the intermediate part and is oriented in one direction ( Z) concurrent with the first axis (I) with the directions of the axes (X, Y) passing through the opposite end pivots (32, 36) of each link (26, 28).
• the lever (12) can be operated longitudinally or transversely.
• the aim of the invention is to allow the integration of an automatic transmission control with manual impulse control or the like, for which the lever operating grid proposes for example a manual position M when the lever is moved. transversely with respect to its driving position D of the automatic mode of the gearbox.
• the positions P, R, N, D illustrated in FIG. 2 are the conventional Parking (Parking), Reverse (Reverse), Neutral (Neutral) and Drive (Drive) positions of the automatic boxes.
• the successive transition from position D to position P and vice versa is achieved by a longitudinal action on the lever (12) maneuver.
• the device according to the invention comprises means for returning (4) the movement longitudinally (ML) of the lever (12) for actuating at least one transmission member (5).
• This member (5) of the transmission cable type or the like is connected to the lower part of the gearbox to actuate or not the engagement gear ratios of the box.
• the transmission cable (5) can be provided for transmitting, via the deflection means (4), longitudinal position information of the lever (12) corresponding to one of the positions illustrated in Figure 2: parking, reverse, neutral and automatic driving.
• the return means (4) is integral with the frame (16) and rotatable about an axis (D ') parallel to the first axis (I).
• the return means (4) is operable only when one of the links (26, 28) is in a so-called engagement position with the return means (4).
• This link is for example the front link (28), which is rotatable about said second axis (A) between this engagement position and a distinct position of disengagement.
• the front link (28) has a first end (27) attached to a front end portion (120) of the lever (12) and an opposing second end (29) through which the first link (28) can drive the return means (4).
• the latter comprises a main portion secured to a fixing ball (45) or equivalent attachment means of the transmission member (5) and a secondary portion for cooperating or not by engagement with a free end (29) of the front link (28).
• the engagement position of the link (28) is permitted by a hooking end (41) of the return means (4).
• This attachment end (41) has for example a shape substantially complementary to the end (29) opposite the lever (12) of the front link (28). In this position, this end (29) of the rod faces at least one contact zone of the attachment end (41) so that the front link (28) can rotate the return means (4) when the lever (12) is actuated in a longitudinal direction.
• the axis (D ') of rotation of the return means (4) is coaxial in this position with the axis (D) of articulation of the front link (28).
• the attachment end (41) formed on the secondary portion of the means of Referral (4) comprises for example a U-shaped portion projecting to receive the second end (29) of the front link (28) in the engagement position.
• the disengagement position corresponds to a position of separation of the second end (29) of the rod relative to the support (14). In this disengagement position, this end (29) opposite to the lever (12) is sufficiently offset with respect to the attachment end (41) of the return means (4) to avoid any contact with said return means (4). ).
• the disengagement position is obtained when the driver leaves the automatic mode of the gearbox, for example by positioning the lever (12) in the position M illustrated in FIG.
• the branches of the U-shaped portion have a spacing determined to allow engagement of said second end (29) with the internal contact zones of the U-shaped portion of the hooking end ( 41). Moreover, the thickness (e) of the U-shaped portion and the thickness of the second end (29) are substantially equal.
• the main portion of the deflection means (4) is advantageously arranged vis-à-vis the attachment end (41), the main portion and the attachment end (41) being connected by a curved portion.
• the return means (4) comprises a main portion parallel to the secondary portion forming the attachment end (41).
• the deflection means (4) may be designed in one piece and have a transverse curved portion for maintaining a predetermined spacing (L) between the main portion and the secondary portion which is sufficient to allow in the disengaged position a free movement of rotating the second end (29) of the front link (28). A rotational movement of this link (28) can therefore be effected in a longitudinal plane between the main portion and the U-shaped portion of the deflection means (4), said spacing (L) being at least twice the thickness (e) the U-shaped portion
• the support (14) pivotally mounted relative to the frame (16) can be provided with a cam system driven via the links (26, 28) by a transverse movement (MT) of the lever (12).
• This cam system includes a projecting lug (3) movable vertically between a lower position and an upper position, the position of the lug (3) being physically marked with a marking system.
• the frame (16) for this purpose comprises an arm (8) provided with the marking system, for example disposed opposite said tab (3) extending transversely relative to the vehicle.
• the position marking system of the tab (3) comprises at the end of the arm (8) a billing member (80) opposite the tab (3). ) arranged respectively to bear on one or the other of two adjacent distinct concave zones formed at the end of said tab (3).
• the delimitation between the two concave zones corresponds to a protruding stop which allows locking in position of the tab.
• the lower concave zone of the tab (3) is occupied by the billing member (80) in the automatic position D (the front link rod occupying its engagement position) while the concave zone upper leg (3) is occupied in manual position M.
• the speed control is generally required to have a mechanical lock to move from the positions P to R, D to N, N to R and R to P.
• this type of protection can be obtained by means of rotational locking means provided on the frame (16) to block the return of the longitudinal movement (ML) exerted on the lever (12) by the driver.
• These rotational locking means comprise for example a locking element (17) associated with a tab (15) with at least four notches which is integral with the main portion of the return means (4).
• the lever (12) can be provided with a trigger (10) for pulling an actuating cable (90) or actuating means equivalent of this locking element (17).
• the return means (4) used in the device of the invention must be integral with rotational locking means actuated by mechanical and / or electromechanical type control members.
• the rotational locking means comprise at least one tab (15) connected to the return means (4), this tab (15) being blocked by two separate locking elements.
• a first mechanical type locking is performed in the longitudinal plane including the main portion of the deflection means, with the aid of said locking element (17), and second electromechanical type locking is performed transversely by a locking pin ( 130).
• the tab (15) is for example provided with at least one groove or light for receiving the locking pin (130) which is actuated by an electromagnet system (13).
• This system (13) is of the type receiving electrical controls representative of braking. Pressing on the brake, which is electrically connected to the electromagnet system (13), is used to drive the locking pin (130) in a transverse translational movement so that the finger (130) enters a piercing or a light of the paw (15).
• the lug (15) may comprise a slot (151) designed to receive the locking pin (130) and delimit the stroke of the lug (15) by at least one abutment surface for the locking finger. locking (15) in the position of passage from the parking position to the reverse position.
• a hole (152) forming a hole or additional lumen is provided for receiving the locking finger (130) in the locking position corresponding to the parking position. It is thus possible to perform an electro-mechanical locking, called shiftlock, to exit the parking position P.
• the tab (15) comprises between two respective notches successive corresponding locking positions.
• the double protection involves first pressing the brake to release the tab (15) of the locking finger (130), and secondly to actuating the trigger (10) to initiate withdrawal of the end (170) of the locking member (17).
• the locking finger (130) nor the end (170) of the locking element forming a stop for at least one of the adjacent notches does not block the rotational movement of the return means (4).
• the unlatching action of the tab (15) via the trigger (10) is also done for the changes D to N, N to R, and R to P.
• the electro action -Mechanical is not necessary for these changes, the locking finger (130) being then in the light (151) of the tab (15).
• the lug (15) illustrated in FIG. 5 may be replaced by one or more equivalent members secured to the return means (4), these members being able to receive movable locking elements actuated by the driver.
• the other positional changes do not require unlocking action of the tab (15) because the end of this tab is chamfered for these cases.
• the notches of the tab (15) can thus be chamfered to facilitate the rotation of the tab (15) in the opposite direction to the engagement of the locking position corresponding to the parking position P.
• One of the advantages of the control device according to the invention is to allow to deport the mechanism of the gearbox while maintaining an ergonomic trajectory for the driver, while providing several modes of control reports.

Landscapes

• Engineering & Computer Science (AREA)
• General Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Arrangement Or Mounting Of Control Devices For Change-Speed Gearing (AREA)
• Gear-Shifting Mechanisms (AREA)
• Control Of Transmission Device (AREA)
• Structure Of Transmissions (AREA)

Applications Claiming Priority (2)

Publications (2)

Family

ID=35311407

Family Applications (1)

Country Status (6)

Families Citing this family (2)

Family Cites Families (12)

• 2005
  • 2005-03-17 FR FR0502637A patent/FR2883229B1/fr not_active Expired - Fee Related
• 2006
  • 2006-02-28 WO PCT/FR2006/050177 patent/WO2006097648A1/fr not_active Application Discontinuation
  • 2006-02-28 DE DE602006019388T patent/DE602006019388D1/de active Active
  • 2006-02-28 EP EP06726201A patent/EP1861636B1/de not_active Not-in-force
  • 2006-02-28 AT AT06726201T patent/ATE494497T1/de not_active IP Right Cessation
  • 2006-02-28 JP JP2008501380A patent/JP2008535716A/ja not_active Ceased

Non-Patent Citations (1)

Also Published As

Similar Documents

Legal Events